Nanolasers

Semiconductor lasers have shrunk to dimensions even smaller than the wavelength of the light they emit. In that realm, quantum behavior takes over, enabling more efficient and faster devices

Animating Human Motion

Computer animation is becoming increasingly lifelike. Using simulation, a technique based on the laws of physics, researchers have created virtual humans who run, dive, bicycle and vault

The Caiman Trade

The contraband trade in "Caiman" skins shows how sustainable utilization of endangered species fails to sustain them

Preventing the Next Oil Crunch

The End of Cheap Oil

Global production of conventional oil will begin to decline sooner than most people think, probably within 10 years

Mining for Oil

More oil is trapped in Canadian sands than Saudi Arabia holds in its reserves. The technology now exists to exploit this vast resource profitably

Oil Production in the 21st Century

Recent innovations in underground imaging, steerable drilling and deepwater oil production could recover more of what lies below

Liquid Fuels from Natural Gas

Natural gas is cleaner and more plentiful than oil. New ways to convert it to liquid form may soon make it just as cheap and convenient to use in vehicles